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require 'drb/drb'
require 'drb/acl'
module RSpec
module Core
# @private
module Bisect
# @private
BisectFailedError = Class.new(StandardError)
# @private
# A DRb server that receives run results from a separate RSpec process
# started by the bisect process.
class Server
def self.run
server = new
server.start
yield server
ensure
server.stop
end
def capture_run_results(expected_failures=[])
self.expected_failures = expected_failures
self.latest_run_results = nil
run_output = yield
latest_run_results || raise_bisect_failed(run_output)
end
def start
# Only allow remote DRb requests from this machine.
DRb.install_acl ACL.new(%w[ deny all allow localhost allow 127.0.0.1 ])
# We pass `nil` as the first arg to allow it to pick a DRb port.
@drb = DRb.start_service(nil, self)
end
def stop
@drb.stop_service
end
def drb_port
@drb_port ||= Integer(@drb.uri[/\d+$/])
end
# Fetched via DRb by the BisectFormatter to determine when to abort.
attr_accessor :expected_failures
# Set via DRb by the BisectFormatter with the results of the run.
attr_accessor :latest_run_results
private
def raise_bisect_failed(run_output)
raise BisectFailedError, "Failed to get results from the spec " \
"run. Spec run output:\n\n#{run_output}"
end
end
end
end
end
|
